Containment tank for fluids



FIG. 1 is a perspective view of a containment tank for fluids, showing my new design;

FIG. 2 is a front elevational view, thereof, the rear elevational view being substantially a mirror image, thereof;

FIG. 3 is a side elevational view, thereof, the opposite side elevational view being substantially a mirror image, thereof;

FIG. 4 is a top plan view; and,

FIG. 5 is a bottom plan view. 

The ornamental design for a containment tank for fluids, as shown and described. 